ICC P2 study materials
ICC P2 study resources

ICC P2 case studies

ICC P2 · Put your knowledge to work in context.

The Commercial Plumbing Inspector (P2) certification is a professional credential administered by the International Code Council (ICC) for code enforcement and inspection professionals who evaluate plumbing systems in commercial buildings. It is typically pursued by municipal and private-sector plumbing inspectors, plan reviewers, code officials, and trade professionals moving into enforcement roles, and it is frequently used to demonstrate competence for job requirements, promotion, and licensing recognition. The ICC P2 case studies are 5 cases and about 2,437 words.

1

Restaurant Remodel Without a Permit

A tenant is converting an 1,800-square-foot retail space into a restaurant. The contractor proposes to replace the existing three-compartment sink in the same location with a like-sized unit, add a mop sink in a janitor closet, relocate a 100-gallon water heater 12 feet, extend a 3/4-inch gas line to a new range, and cut a 2-inch cast-iron stack to install a cleanout.

480 words, about 2 min
2

Dental Office Tankless Heater and Hand Sink

A 1,200-square-foot dental office has an assigned occupant load of 10 and one existing single-user restroom containing a water closet and a lavatory. The tenant adds a sterilization room with a hand sink and replaces the old 40-gallon tank water heater with a 199,000 Btu/h condensing tankless heater in a 30-inch by 30-inch closet with a louvered door.

542 words, about 3 min
3

Four-Story Office Pressure and Backflow

A four-story office building is served by a 2-inch water service. The street pressure at the meter is 55 psi, the meter and backflow assembly lose 10 psi at peak demand, the developed length of piping to the top floor adds 18 psi of friction loss, and the highest flushometer valve is 40 feet above the meter.

475 words, about 2 min
4

Basement Bathroom Trap Arm and Air Admittance Valve

A basement bathroom is being relocated. The lavatory and shower are moved 7 feet from a 2-inch vertical stack.

497 words, about 2 min
5

Warehouse Roof Drain and Secondary Drainage

A 10,000-square-foot warehouse has a flat roof with a 24-inch parapet. The local 100-year, 1-hour rainfall is 3.2 inches.

443 words, about 2 min